The balanced net ionic equation for precipitation of CaCOs when aqueous solutions of NazCOa and and CaCla are mixed is A) 2Na (aq) + CO,2 (aq) → Na:COs(aq) B) 2Na (aq) + 2CI(aq) → 2NaCI(aq) C) Na (aq) + Cl(aq)→ NaCI(aq) D) Ca2 (aq) + CO,2(aq) → CaCOs(s) E) NazCO3(aq) + CaCla(aq) → 2NACI(aq) + CaCOs(s)

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The balanced net ionic equation for precipitation of CaCOs when aqueous solutions of Na:COs
and and CaCl2 are mixed is
A) 2Na (aq) + CO,²(aq) → Na2COs(aq)
B) 2Na*(aq) + 2CI(aq) → 2NACI(aq)
C) Na (aq) + CI(aq) → NaCI(aq)
D) Ca2 (aq) + CO,²(aq)→ CaCOs(s)
E) NazCOs(aq) + CaCla(aq) → 2NACI(aq) + CaCO3(s)
DELL
&
大
%24
%
7
8.
y
u
f
Transcribed Image Text:The balanced net ionic equation for precipitation of CaCOs when aqueous solutions of Na:COs and and CaCl2 are mixed is A) 2Na (aq) + CO,²(aq) → Na2COs(aq) B) 2Na*(aq) + 2CI(aq) → 2NACI(aq) C) Na (aq) + CI(aq) → NaCI(aq) D) Ca2 (aq) + CO,²(aq)→ CaCOs(s) E) NazCOs(aq) + CaCla(aq) → 2NACI(aq) + CaCO3(s) DELL & 大 %24 % 7 8. y u f
In which of the following compounds would hydrogen have an oxidation state of zero?
A) HI
B) NaH
с) Са(ОН)2
D) NH&CI
E) H2
DELL
4
8.
y
f
j
V
3.
*00
Transcribed Image Text:In which of the following compounds would hydrogen have an oxidation state of zero? A) HI B) NaH с) Са(ОН)2 D) NH&CI E) H2 DELL 4 8. y f j V 3. *00
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